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<h1 class="title">plugindialog.cpp 示例文件</h1>
<span class="subtitle">tools/plugandpaint/app/plugindialog.cpp</span>
<!-- $$$tools/plugandpaint/app/plugindialog.cpp-description -->
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<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
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  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
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  <span class="preprocessor">#include &quot;interfaces.h&quot;</span>
  <span class="preprocessor">#include &quot;plugindialog.h&quot;</span>

  <span class="preprocessor">#include &lt;QDir&gt;</span>
  <span class="preprocessor">#include &lt;QGridLayout&gt;</span>
  <span class="preprocessor">#include &lt;QHeaderView&gt;</span>
  <span class="preprocessor">#include &lt;QLabel&gt;</span>
  <span class="preprocessor">#include &lt;QPluginLoader&gt;</span>
  <span class="preprocessor">#include &lt;QPushButton&gt;</span>
  <span class="preprocessor">#include &lt;QStringList&gt;</span>
  <span class="preprocessor">#include &lt;QTreeWidget&gt;</span>
  <span class="preprocessor">#include &lt;QTreeWidgetItem&gt;</span>

  PluginDialog<span class="operator">::</span>PluginDialog(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>path<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> <span class="operator">&amp;</span>fileNames<span class="operator">,</span>
                             <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) :
      <span class="type"><a href="qdialog.html">QDialog</a></span>(parent)<span class="operator">,</span>
      label(<span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>)<span class="operator">,</span>
      treeWidget(<span class="keyword">new</span> <span class="type"><a href="qtreewidget.html">QTreeWidget</a></span>)<span class="operator">,</span>
      okButton(<span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;OK&quot;</span>)))
  {
      treeWidget<span class="operator">-</span><span class="operator">&gt;</span>setAlternatingRowColors(<span class="keyword">false</span>);
      treeWidget<span class="operator">-</span><span class="operator">&gt;</span>setSelectionMode(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>NoSelection);
      treeWidget<span class="operator">-</span><span class="operator">&gt;</span>setColumnCount(<span class="number">1</span>);
      treeWidget<span class="operator">-</span><span class="operator">&gt;</span>header()<span class="operator">-</span><span class="operator">&gt;</span>hide();

      okButton<span class="operator">-</span><span class="operator">&gt;</span>setDefault(<span class="keyword">true</span>);

      connect(okButton<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">::</span>close);

      <span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>setColumnStretch(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span>);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>setColumnStretch(<span class="number">2</span><span class="operator">,</span> <span class="number">1</span>);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(label<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(treeWidget<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(okButton<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>);
      setLayout(mainLayout);

      interfaceIcon<span class="operator">.</span>addPixmap(style()<span class="operator">-</span><span class="operator">&gt;</span>standardPixmap(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirOpenIcon)<span class="operator">,</span>
                              <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>On);
      interfaceIcon<span class="operator">.</span>addPixmap(style()<span class="operator">-</span><span class="operator">&gt;</span>standardPixmap(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirClosedIcon)<span class="operator">,</span>
                              <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Off);
      featureIcon<span class="operator">.</span>addPixmap(style()<span class="operator">-</span><span class="operator">&gt;</span>standardPixmap(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_FileIcon));

      setWindowTitle(tr(<span class="string">&quot;Plugin Information&quot;</span>));
      findPlugins(path<span class="operator">,</span> fileNames);
  }

  <span class="type">void</span> PluginDialog<span class="operator">::</span>findPlugins(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>path<span class="operator">,</span>
                                 <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> <span class="operator">&amp;</span>fileNames)
  {
      label<span class="operator">-</span><span class="operator">&gt;</span>setText(tr(<span class="string">&quot;Plug &amp; Paint found the following plugins\n&quot;</span>
                        <span class="string">&quot;(looked in %1):&quot;</span>)
                     <span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>toNativeSeparators(path)));

      <span class="keyword">const</span> <span class="type"><a href="../qtcore/qdir.html">QDir</a></span> dir(path);

      <span class="keyword">const</span> <span class="keyword">auto</span> staticInstances <span class="operator">=</span> <span class="type"><a href="../qtcore/qpluginloader.html">QPluginLoader</a></span><span class="operator">::</span>staticInstances();
      <span class="keyword">for</span> (<span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>plugin : staticInstances)
          populateTreeWidget(plugin<span class="operator">,</span> tr(<span class="string">&quot;%1 (Static Plugin)&quot;</span>)
                                     <span class="operator">.</span>arg(plugin<span class="operator">-</span><span class="operator">&gt;</span>metaObject()<span class="operator">-</span><span class="operator">&gt;</span>className()));

      <span class="keyword">for</span> (<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>fileName : fileNames) {
          <span class="type"><a href="../qtcore/qpluginloader.html">QPluginLoader</a></span> loader(dir<span class="operator">.</span>absoluteFilePath(fileName));
          <span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>plugin <span class="operator">=</span> loader<span class="operator">.</span>instance();
          <span class="keyword">if</span> (plugin)
              populateTreeWidget(plugin<span class="operator">,</span> fileName);
      }
  }

  <span class="type">void</span> PluginDialog<span class="operator">::</span>populateTreeWidget(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>plugin<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>text)
  {
      <span class="keyword">auto</span> pluginItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span>(treeWidget);
      pluginItem<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="number">0</span><span class="operator">,</span> text);
      treeWidget<span class="operator">-</span><span class="operator">&gt;</span>setItemExpanded(pluginItem<span class="operator">,</span> <span class="keyword">true</span>);

      <span class="type"><a href="../qtgui/qfont.html">QFont</a></span> boldFont <span class="operator">=</span> pluginItem<span class="operator">-</span><span class="operator">&gt;</span>font(<span class="number">0</span>);
      boldFont<span class="operator">.</span>setBold(<span class="keyword">true</span>);
      pluginItem<span class="operator">-</span><span class="operator">&gt;</span>setFont(<span class="number">0</span><span class="operator">,</span> boldFont);

      <span class="keyword">if</span> (plugin) {
          <span class="keyword">auto</span> iBrush <span class="operator">=</span> qobject_cast<span class="operator">&lt;</span>BrushInterface <span class="operator">*</span><span class="operator">&gt;</span>(plugin);
          <span class="keyword">if</span> (iBrush)
              addItems(pluginItem<span class="operator">,</span> <span class="string">&quot;BrushInterface&quot;</span><span class="operator">,</span> iBrush<span class="operator">-</span><span class="operator">&gt;</span>brushes());

          <span class="keyword">auto</span> iShape <span class="operator">=</span> qobject_cast<span class="operator">&lt;</span>ShapeInterface <span class="operator">*</span><span class="operator">&gt;</span>(plugin);
          <span class="keyword">if</span> (iShape)
              addItems(pluginItem<span class="operator">,</span> <span class="string">&quot;ShapeInterface&quot;</span><span class="operator">,</span> iShape<span class="operator">-</span><span class="operator">&gt;</span>shapes());

          <span class="keyword">auto</span> iFilter <span class="operator">=</span> qobject_cast<span class="operator">&lt;</span>FilterInterface <span class="operator">*</span><span class="operator">&gt;</span>(plugin);
          <span class="keyword">if</span> (iFilter)
              addItems(pluginItem<span class="operator">,</span> <span class="string">&quot;FilterInterface&quot;</span><span class="operator">,</span> iFilter<span class="operator">-</span><span class="operator">&gt;</span>filters());
      }
  }

  <span class="type">void</span> PluginDialog<span class="operator">::</span>addItems(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>pluginItem<span class="operator">,</span>
                              <span class="keyword">const</span> <span class="type">char</span> <span class="operator">*</span>interfaceName<span class="operator">,</span>
                              <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> <span class="operator">&amp;</span>features)
  {
      <span class="keyword">auto</span> interfaceItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span>(pluginItem);
      interfaceItem<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="number">0</span><span class="operator">,</span> interfaceName);
      interfaceItem<span class="operator">-</span><span class="operator">&gt;</span>setIcon(<span class="number">0</span><span class="operator">,</span> interfaceIcon);

      <span class="keyword">for</span> (<span class="type"><a href="../qtcore/qstring.html">QString</a></span> feature : features) {
          <span class="keyword">if</span> (feature<span class="operator">.</span>endsWith(<span class="string">&quot;...&quot;</span>))
              feature<span class="operator">.</span>chop(<span class="number">3</span>);
          <span class="keyword">auto</span> featureItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span>(interfaceItem);
          featureItem<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="number">0</span><span class="operator">,</span> feature);
          featureItem<span class="operator">-</span><span class="operator">&gt;</span>setIcon(<span class="number">0</span><span class="operator">,</span> featureIcon);
      }
  }

</pre>
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<!-- @@@tools/plugandpaint/app/plugindialog.cpp -->
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